Asked by s

Which compound would you expect to have the highest melting point?



BeO

MgO

CaO

SrO
Answered by Devron
The one with the greater electronegativity difference. Electronegativity increase up and to the right of the periodic table, so the atom that is attached to O with smallest electronegativity should be the one with the highest melting point. But I am not 100% positive.


SrO is my choice.
Answered by damn
devron you're wrong mate
because Be has the highest electronegativity difference, it will form the most polar molecule meaning the permanent diploe-dipole forces will be the strongest, therefore the highest melting point
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